Human reproduction requires both male and female gametes. Gametes are special sex cells that contain the genetic information necessary to create a new life. Men produce millions of gametes called ...

When hormonal contraceptive pills hit the market in the 1960s, it revolutionized women’s control over their own bodies. For men, successful reproduction begins with the right cocktail of hormones, ...

If your estrogen levels are low, your brain, bone, heart, and sexual health may be negatively impacted. In cisgender men and others assigned male at birth, estrogen levels can drop for any number of ...